Who proposed the two kingdom classification?

In taxonomic hierarchy,family comes between

In the hierarchy of classification,which grouping will have the smallest number of organisms with maximum common characteristics and which will have the largest number of organisms?

Which of the following is not a criterion for the classification of living organisms?

Give three examples of the range of variations that you see in lifeforms around you.

Plants that do not have well-differentiated body design fall into the group called